Boat arch



FIG. 1 is a perspective view of the boat arch as attached to a boat (shown in phantom by the dashed lines);

FIG. 2 is a front view of the boat arch;

FIG. 3 is a rear view of the boat arch;

FIG. 4 is a bottom view of the boat arch;

FIG. 5 is a top plan view of the boat arch;

FIG. 6 is a left side view of the boat arch; and,

FIG. 7 is a right side view of the boat arch.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a boat arch, as shown and described. 